Results for “Black Opal”

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16.11 Ct Natural Black Flashing Fire Opal Round Beads: Weight - 16.11 Ct / Dimensions - 7.80 - 9.40 mm / 8 Pc's / Shape - Round Beads / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

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16.11 Ct Natural Black Flashing Fire Opal Round Beads

US$46

Gems AuctionBangkok, TH

Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds: Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds Crafted in glowing 14K yellow gold, this elegant vintage brooch features a lustrous opal center that shimmers with iridescent

Jul 26, 2026

Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds

Est.

US$9,000

-

US$10,000

US$5

Eastern European Art Gallery IncBroomall, PA

2.29ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 33FL: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 12x7.4x5mm. The black smoke treatment deepen

2 days Left

2.29ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 33FL

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds: Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds Crafted in glowing 14K yellow gold, this elegant vintage brooch features a lustrous opal center that shimmers with iridescent

Buy Now

Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds

US$9,000

Eastern European Art Gallery IncBroomall, PA

2.75ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 35FL: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 11.2x8.9x5.6mm. The black smoke treatment de

2 days Left

2.75ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 35FL

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

17.60 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 17.60 Ct / Dimensions -25.00 x 18.00 x 8.80 mm / Shape - Oval Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

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17.60 Ct Natural Black Flashing Fire Opal Oval Cab

US$150

Gems AuctionBangkok, TH

Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds: Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds Crafted in glowing 14K yellow gold, this elegant vintage brooch features a lustrous opal center that shimmers with iridescent

Buy Now

Antique 14K Yellow Gold Large Black Opal Brooch with Diamonds and Emeralds

US$9,000

Eastern European Art Gallery IncBroomall, PA

2.28ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 36FL: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.9x8.8x5.3mm. The black smoke treatment de

2 days Left

2.28ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 36FL

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

2.55ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 45FL: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 15x9.1x4.6mm. The black smoke treatment deep

2 days Left

2.55ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 45FL

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

2.01ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 39FL: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10x7.9x5.6mm. The black smoke treatment deep

2 days Left

2.01ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 39FL

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

2.82ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 72AK: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 12.3x8.8x5mm. The black smoke treatment deep

2 days Left

2.82ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 72AK

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

2.18ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 63AK: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.8x8.3x4.6mm. The black smoke treatment de

2 days Left

2.18ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 63AK

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

29.62 Ct Natural Black Flashing Fire "Night Blaze" Opal Oval Cab: Weight - 29.62 Ct / Dimensions - 30.50 x 18.00 x 11.20 mm / Shape - Oval Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

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29.62 Ct Natural Black Flashing Fire "Night Blaze" Opal Oval Cab

US$620

Gems AuctionBangkok, TH

2.48ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 73AK: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 13.4x7.8x5.1mm. The black smoke treatment de

2 days Left

2.48ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 73AK

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

2.53ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 89AK: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 12.7x9.1x5.2mm. The black smoke treatment de

2 days Left

2.53ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 89AK

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

2.02ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 46FL: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 11.8x8.8x4.2mm. The black smoke treatment de

2 days Left

2.02ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 46FL

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

21.46 Ct Natural Black Flashing Fire "Eclipse Flame" Opal Pear Cab: Weight - 21.46 Ct / Dimensions - 22.00 x 21.30 x 9.50 mm / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

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21.46 Ct Natural Black Flashing Fire "Eclipse Flame" Opal Pear Cab

US$470

Gems AuctionBangkok, TH

2.28ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 32FL: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 11.1x8.6x5.5mm. The black smoke treatment de

2 days Left

2.28ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 32FL

Est.

US$20

-

US$200

US$20

ThousandPlanetSathorn, Bangkok

2.26ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 89WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.5x8.4x4.9mm. The black smoke treatment de

2 hrs Left

2.26ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 89WP

Est.

US$25

-

US$200

US$25

Lazo HeritageSathorn, Bangkok

2.50ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 83WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 12.1x8.7x4.6mm. The black smoke treatment de

2 hrs Left

2.50ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 83WP

Est.

US$25

-

US$200

US$25

Lazo HeritageSathorn, Bangkok

Beautiful 5.22 CT Natural Black Opal Ring With Natural Black Diamond & 18k Gold: Title: Beautiful 5.22 CT Natural Black Opal Ring With Natural Black Diamond & 18k Gold Description: Beautiful 5.22 CT Natural Black Opal Ring With Natural Black Diamond and 18k Gold. 5

Ends in 10d 21h

Beautiful 5.22 CT Natural Black Opal Ring With Natural Black Diamond & 18k Gold

Est. —

£600

William GeorgeBedfordshire

Platinum 5.50ct GIA Australian Black Opal Diamond Cocktail Ring: Platinum 5.50ct GIA Australian Black Opal Diamond Cocktail Ring This exquisite cocktail ring features a stunning 5.00ct natural Australian oval black opal, beautifully showcased with a play of colors

6 days Left

Platinum 5.50ct GIA Australian Black Opal Diamond Cocktail Ring

Est.

US$9,477

-

US$12,320

US$7,200

BidhausNew York, NY

Unusual black opal and 70pts diamond 3 stone ring in 18ct yellow gold and platinum: Unusual black opal and 70pts diamond 3 stone ring in 18ct yellow gold and platinum A beautiful .70pts diamond complimented either side by the brightest, most colourful opal stones!

Unusual black opal and 70pts diamond 3 stone ring in 18ct yellow gold and platinum

Est.

£800

-

£850

£500

Banks Jewellery Auctions Gloucestershire

4.52 ct. Floral Flash Play of Color Black Opal ETHIOPIA: 4.52 ct. Floral Flash Play of Color Black Opal - ETHIOPIA Cut - Pear Cabochon Color - Black with play of color Ct. Weight - 4.52 ct. Clarity - Opaque Dimensions - 16.80 x 10.00 x 5.50 mm <

6 days Left

4.52 ct. Floral Flash Play of Color Black Opal ETHIOPIA

Est.

US$3,000

-

US$5,000

US$100

Kissing AuctionDelhi, New Delhi

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